I went to the races last night at Speedworld, my best run was a 16.4@84.3mph with a 2.4 60ft time. I think I did alright. I wanna get that 60ft time down to like 2.0 or 2.1. Got any suggestions how to do it???

 

1) Get stickier tires
2) If you have adjustable shock, turn them all SOFT
3) Practice, practice, practice!



-Ted

 

Well I think that your time is pretty good if all your mods are some mufflers and a hi-flo cat. I mean you have to take into account how old your car is. Have you replaced your precats with a header or straight pipe yet? What about an intake? If you don't have any aftermarket suspension then some new rear struts should help out as well.

 

Very decent time, I had gutted cats and no muffler, did 16.7@86. I think I just cant drive for crap :P

 

what kind of muffler you running and how do you like them? sound quality? i'm looking at some mufflers but don't want to go that expencive right now.

thanks
james

 

Jesus, i have nothing but gutted cats, cone filter (probably doesnt add much of anything..) with A/C PS and Smog pump still on (to activate the ports) and TB mod.. and i ran a 15.9 and i thought that was terrible.....hhmm... interesting

 

I ran a 16.1 at 85.5 in my 'vert. 3" exhaust, cone intake, and crappy 3.9:1 stock convertible differential without LSD.

Remember the 'vert is about 300# heavier than the coupe.

Brad

 

wow..is 16 a good time for a FC?

 

for an N/A FC that is mostly to all stock, yes, 16seconds is good. But still, lower is better.

Kris

 

Practice will do wonders, I'm telling you.

 

15.98 with headers, hiflow cat, stock catback, stuck closed six ports, intake, everything else stock

 

hehe, 14.51 at 99.7 MPH...
That's before I got my S-AFC, replaced my gutted cat with a stainless presilencer,a nd got a new Y-pipe.. .. The AFC *REALLY* helped my midrange/low torque, so that ET should be down a chunk, but the MPH probably won't move much.... thats a slow time for that MPH, showing the real lack of midrange I had...
I just beat a turbo MR2, so I'm hoping I have about 14-14.2 @100 now!
Of course, I don't know for sure, so I probably don't, but I'm hoping!!
(But not too much...only real numbers will tell... I don't like to talk without being able to back it up...)

My car's gutless under 3000... It's a bitch to launch consistantly.

 

what kind of 60' times are possible on a stock clutch? isnt 2.1-2.2 possible?

 

Stock 86-88 on a great running engine, like 20-60k should turn in a 15.8-15.9 at sea level, a guy a while back posted his time, a 15.84 BONE STOCK on a 90k mile engine, BamBam, what is the elevation, 14 sounds too high of a time, i was running a 14-14.3 on an N/A i had a while back with the stock ports.

 

You talking turbo or non-turbo?
15.84 bone stock?&nbsp I find that hard to believe short of the running on slicks on an NA...

NO non-turbo is going to run a 15-second 1/4-mile while it's stock...



-Ted

 

An s5 maybe, but a s4??... I know some people say they are the same speed, but I have both s4 and s5, and have driven many, and I say the s5 is a lot faster.

14 flat on stock ports?????????? On an S4???????
I really wanna see the timeslip on that one!! I don't mean to call the BS flag.... I just wanna know!

 

http://www.turbofast.com.au/Drag.html

Go mess with it.
hp should be rear wheel horsepower, so -15% off of bhp.
Kouki NA is 160hp - 15% = 136hp.
I'm punching in 3000# of weight, cause we need to include the driver.
I get 16.3 - now that's an IDEAL run.&nbsp No way the majority of you guys would cut a 2.0 60' time on your car, so 16.5 to 17.0 should be the average numbers you would see.&nbsp So far, that's EXACTLY the numbers I've seen most NA's run at the drag strip with my eyes.

The Kouki NA does have more power, but the Zenki NA is lighter.&nbsp It's a trade-off, and in the end, they are practically identical in 1/4-mile runs.



-Ted

 

whoa that horsepower calculator is cool. according to it my 15.98 run at 3050 lbs i should be at 145 rwhp in the GTU not bad

 

i dont have the time slip, it died along with the car when i hit a tree at 100mph but i did have the time slip of 14.4 with me and my buddy in the car, with my tool box and spare tire.

 

What kind of mods???
Unless you lightened it by 500 lbs that calculates to 213 RWHP!!
So about 250 flywheel HP?????? Stock ports??
Something doesn't add up here, sorry man.

This is 1/4 mile, not 1/8 mile right??

 

I've taken 3 different RXs to the drags. It's been my experience that you need to slip the clutch just a little to get them to launch hard. Pop the clutch at high rpms and you can start the rear wheels hopping like mad, that kills '60 times and tends to break parts.

The first time at the strip with my 93 R1 I had a worn stock clutch, it gave me absolutely wheel hop free launches because I could pop the pedal and the clutch would slip just a little. When I put in a ACT clutch I had to actively practice slipping it a little. best '60 time is 2.005sec in that car

Best '60 time in my 87 TII is 1.982sec, slipped the clutch (ACT) a little and I had auto-x tires running about 24 psi. I also have adjustable shocks and I run the fronts soft and the rears hard, leaving the rears soft makes it hunker down too much and the rear camber gets all crazy leaving only the inside of the rear tires touching the pavement. 13.425 @104 and 105 mph.

Jeff

 

yea 1/4, i would guess it weighed roughly 2300lbs, interior was completely gutted, only had the seats, anything of extra weight was removed, i had a full exhaust with a pace setter header, gutted cat, 2 1/2" pipe at the gutted cat, a 6" long glass pack and a 2 1/2" pipe from there back, custom made intake, modded TB, removed all emissions, the 6 port system was working perfectly, shifting it at 7600rpm, had 205/50/15" I have absolutely no clue if it was ported or not, i bought the car with the stripped interior and all the weight reduction already done to it

 

you got AIM bambam??

 

From what i hjave seen, S4 usually give better 1/4 time than the s5 NA cars. Dont ask me why, i think the lack of torque really hurts when you dont know how to launch a heavier car. But i've owned both. The S4 definitely feels slower